var sy = sy || {};
/**
 * 扩展tree，使其支持特定数据格式
 * 
 */
sy.loadFilter = {
	loadFilter : function(data, parent) {
		var opt = $(this).data().tree.options;
		var idField, textField, parentField,attributes;
		if (opt.parentField) {
			idField = opt.idField || 'id';
			textField = opt.textField || 'text';
			parentField = opt.parentField || 'pid';
			//console.info(opt.attributes);
			attributes = opt.attributes || new Array();
			var i, l, treeData = [], tmpMap = [];
			for (i = 0, l = data.length; i < l; i++) {
				tmpMap[data[i][idField]] = data[i];
			}
			for (i = 0, l = data.length; i < l; i++) {
				if (tmpMap[data[i][parentField]] && data[i][idField] != data[i][parentField]) {
					if (!tmpMap[data[i][parentField]]['children'])
						tmpMap[data[i][parentField]]['children'] = [];
						tmpMap[data[i][parentField]]['attributes'] = [];//存储属性数据
					data[i]['text'] = data[i][textField];
					tmpMap[data[i][parentField]]['children'].push(data[i]);
					var map = [];
					for(var item in attributes) {
						map["'"+attributes[item]+"'"] = data[i][attributes[item]];
					}
					tmpMap[data[i][parentField]]['attributes'].push(map);
				} else {
					data[i]['text'] = data[i][textField];
					treeData.push(data[i]);
				}
			}
			return treeData;
		}
		return data;
	}
};
$.extend($.fn.tree.defaults, sy.loadFilter);
$.extend($.fn.combotree.defaults, sy.loadFilter);

$(document).ready(function() {
	$('input[type="tree"],ul[type="tree"]').each(function() {
		var o = '';
		var body='';
		var tranCode=$(this).attr("tranCode");
		var parentField = $(this).attr("parentField");
		var textField = $(this).attr("textField");
		var idField = $(this).attr("idField");
		var resultObj = $(this).attr("resultObj");
		var params = $(this).attr("params");
		var treeid = $(this).attr("id");
		var paramsArry=params.split(",");
		if(paramsArry.length>0){
			o=o+"{";
			body="\"PageCtrl\":{\"pageflag\":\"4\",\"currpage\":\"1\",\"pagenum\":\"0\"}";
		}else{
			body="{\"PageCtrl\":{\"pageflag\":\"4\",\"currpage\":\"1\",\"pagenum\":\"0\"}}";
		}
		for (var i=0;i<paramsArry.length ;i++ ) 
		{
			var name = $('#'+paramsArry[i]).attr("name");
			var value = $('#'+paramsArry[i]).val();
			if(name==undefined){
				continue;
			}
			o=o+"\""+name+"\":\""+value+"\",";
		} 
    	//var body="{\"PageCtrl\":{\"pageflag\":\"4\",\"currpage\":\"1\",\"pagenum\":\"0\"}}";
    	body=o+body;
    	if(paramsArry.length>0){
    		body=body+"}";
    	}
    	$.ajax({
             dataType: "json",
    	     type: 'POST',
    	     url: 'access',
    	     data: {
    	    	 tranCode:tranCode,
    	    	 body:body
    		 },
    	     success: function (resultOjb) {
    	    	 var resultOjbResult = eval('('+resultOjb.result+')');
    	    	 var treeJson=resultOjbResult[resultObj];
    	    	 try{
    	    		 if(treeData&&typeof(treeData)=="function"){ 
    	    			 treeData(treeid,treeJson,parentField,textField,idField);
    	    		 }
    	    	 }catch(e){} 
    	    	 
    	     }
    	 });
	});
});

/**  
 * 1）扩展jquery easyui tree的节点检索方法。使用方法如下：  
 * $("#treeId").tree("search", searchText);    
 * 其中，treeId为easyui tree的根UL元素的ID，searchText为检索的文本。  
 * 如果searchText为空或""，将恢复展示所有节点为正常状态  
 */  
(function($) {    
      
    $.extend($.fn.tree.methods, {  
        /**  
         * 扩展easyui tree的搜索方法  
         * @param tree easyui tree的根DOM节点(UL节点)的jQuery对象  
         * @param searchText 检索的文本  
         * @param this-context easyui tree的tree对象  
         */  
        search: function(jqTree, searchText) {  
            //easyui tree的tree对象。可以通过tree.methodName(jqTree)方式调用easyui tree的方法  
            var tree = this;  
              
            //获取所有的树节点  
            var nodeList = getAllNodes(jqTree, tree);  
              
            //如果没有搜索条件，则展示所有树节点  
            searchText = $.trim(searchText);  
            if (searchText == "") {  
                for (var i=0; i<nodeList.length; i++) {  
                    $(".tree-node-targeted", nodeList[i].target).removeClass("tree-node-targeted");  
                    $(nodeList[i].target).show();  
                }  
                //展开已选择的节点（如果之前选择了）  
                var selectedNode = tree.getSelected(jqTree);  
                if (selectedNode) {  
                    tree.expandTo(jqTree, selectedNode.target);  
                }  
                return;  
            }  
              
            //搜索匹配的节点并高亮显示  
            var matchedNodeList = [];  
            if (nodeList && nodeList.length>0) {  
                var node = null;  
                for (var i=0; i<nodeList.length; i++) {  
                    node = nodeList[i];  
                    if (isMatch(searchText, node.text)) {  
                        matchedNodeList.push(node);  
                    }  
                }  
                  
                //隐藏所有节点  
                for (var i=0; i<nodeList.length; i++) {  
                    $(".tree-node-targeted", nodeList[i].target).removeClass("tree-node-targeted");  
                    $(nodeList[i].target).hide();  
                }             
                  
                //折叠所有节点  
                tree.collapseAll(jqTree);  
                  
                //展示所有匹配的节点以及父节点              
                for (var i=0; i<matchedNodeList.length; i++) {  
                    showMatchedNode(jqTree, tree, matchedNodeList[i]);  
                }  
            }      
        },  
          
        /**  
         * 展示节点的子节点（子节点有可能在搜索的过程中被隐藏了）  
         * @param node easyui tree节点  
         */  
        showChildren: function(jqTree, node) {  
            //easyui tree的tree对象。可以通过tree.methodName(jqTree)方式调用easyui tree的方法  
            var tree = this;  
              
            //展示子节点  
            if (!tree.isLeaf(jqTree, node.target)) {  
                var children = tree.getChildren(jqTree, node.target);  
                if (children && children.length>0) {  
                    for (var i=0; i<children.length; i++) {  
                        if ($(children[i].target).is(":hidden")) {  
                            $(children[i].target).show();  
                        }  
                    }  
                }  
            }     
        },  
          
        /**  
         * 将滚动条滚动到指定的节点位置，使该节点可见（如果有滚动条才滚动，没有滚动条就不滚动）  
         * @param param {  
         *    treeContainer: easyui tree的容器（即存在滚动条的树容器）。如果为null，则取easyui tree的根UL节点的父节点。  
         *    targetNode:  将要滚动到的easyui tree节点。如果targetNode为空，则默认滚动到当前已选中的节点，如果没有选中的节点，则不滚动  
         * }   
         */  
        scrollTo: function(jqTree, param) {  
            //easyui tree的tree对象。可以通过tree.methodName(jqTree)方式调用easyui tree的方法  
            var tree = this;  
              
            //如果node为空，则获取当前选中的node  
            var targetNode = param && param.targetNode ? param.targetNode : tree.getSelected(jqTree);  
              
            if (targetNode != null) {  
                //判断节点是否在可视区域                 
                var root = tree.getRoot(jqTree);  
                var $targetNode = $(targetNode.target);  
                var container = param && param.treeContainer ? param.treeContainer : jqTree.parent();  
                var containerH = container.height();  
                var nodeOffsetHeight = $targetNode.offset().top - container.offset().top;  
                if (nodeOffsetHeight > (containerH - 30)) {  
                    var scrollHeight = container.scrollTop() + nodeOffsetHeight - containerH + 30;  
                    container.scrollTop(scrollHeight);  
                }                             
            }  
        }  
    });  
      
      
      
      
    /**  
     * 展示搜索匹配的节点  
     */  
    function showMatchedNode(jqTree, tree, node) {  
        //展示所有父节点  
        $(node.target).show();  
        $(".tree-title", node.target).addClass("tree-node-targeted");  
        var pNode = node;  
        while ((pNode = tree.getParent(jqTree, pNode.target))) {  
            $(pNode.target).show();               
        }  
        //展开到该节点  
        tree.expandTo(jqTree, node.target);  
        //如果是非叶子节点，需折叠该节点的所有子节点  
        if (!tree.isLeaf(jqTree, node.target)) {  
            tree.collapse(jqTree, node.target);  
        }  
    }      
      
    /**  
     * 判断searchText是否与targetText匹配  
     * @param searchText 检索的文本  
     * @param targetText 目标文本  
     * @return true-检索的文本与目标文本匹配；否则为false.  
     */  
    function isMatch(searchText, targetText) {  
        return $.trim(targetText)!="" && targetText.indexOf(searchText)!=-1;  
    }  
      
    /**  
     * 获取easyui tree的所有node节点  
     */  
    function getAllNodes(jqTree, tree) {  
        var allNodeList = jqTree.data("allNodeList");  
        if (!allNodeList) {  
            var roots = tree.getRoots(jqTree);  
            allNodeList = getChildNodeList(jqTree, tree, roots);  
            jqTree.data("allNodeList", allNodeList);  
        }  
        return allNodeList;  
    }  
      
    /**  
     * 定义获取easyui tree的子节点的递归算法  
     */  
    function getChildNodeList(jqTree, tree, nodes) {  
        var childNodeList = [];  
        if (nodes && nodes.length>0) {             
            var node = null;  
            for (var i=0; i<nodes.length; i++) {  
                node = nodes[i];  
                childNodeList.push(node);  
                if (!tree.isLeaf(jqTree, node.target)) {  
                    var children = tree.getChildren(jqTree, node.target);  
                    childNodeList = childNodeList.concat(getChildNodeList(jqTree, tree, children));  
                }  
            }  
        }  
        return childNodeList;  
    }  
})(jQuery);  
